Takeshita Masashi, Arai Hirokuni, Mizuno Tomohiro, Oi Keiji, Yashima Masahumi
Department of Cardiovascular Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Department of Cardiovascular Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan. Electronic correspondence:
J Heart Valve Dis. 2017 Nov;26(6):688-692.
True parachute mitral valve and parachute-like asymmetric mitral valve are associated with congenital anomalies of the papillary muscles, which involves an abnormal anatomy of the papillary muscles and chordae.
Two patients are described with mitral valve regurgitation and papillary muscle anomalies. Mitral valve repair using artificial chordae reconstruction and ring annuloplasty was attempted in both cases.
The first patient had a true parachute mitral valve, while the second patient had a parachute-like asymmetric mitral valve. In both patients, widespread leaflet prolapse induced mitral valve regurgitation, and the anterior mitral leaflet was thickened because of long-term regurgitation. Mitral valve repair using artificial chordae reconstruction and ring annuloplasty were successfully performed. At midterm follow up the patients did not experience any progression of significant regurgitation or stenosis.
Mitral valve repair using artificial chordae reconstruction combined with ring annuloplasty is effective for treating regurgitant parachute mitral valve in adults.
真性降落伞样二尖瓣和降落伞样不对称二尖瓣与乳头肌先天性异常相关，这涉及乳头肌和腱索的解剖结构异常。
描述了2例二尖瓣反流和乳头肌异常的患者。两例均尝试使用人工腱索重建和瓣环成形术进行二尖瓣修复。
第一例患者为真性降落伞样二尖瓣，第二例患者为降落伞样不对称二尖瓣。两例患者均因广泛的瓣叶脱垂导致二尖瓣反流，且二尖瓣前叶因长期反流而增厚。使用人工腱索重建和瓣环成形术成功进行了二尖瓣修复。中期随访时，患者未出现任何严重反流或狭窄的进展。
使用人工腱索重建联合瓣环成形术进行二尖瓣修复对治疗成人反流性降落伞样二尖瓣有效。
